Lighting unit



FIG. 1 is a view showing the back, top, and a first side of the lighting device of the present invention, with the broken line showing for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a view showing the front, top and first side of the present invention;

FIG. 3 is a view of the top of the lighting unit of the present invention, with the broken line showing for illustrative purposes only and forming no part of the claimed design;

FIG. 4 is a view of the back of the lighting unit of the present invention, with the broken line showing for illustrative purposes only and forming no part of the claimed design;

FIG. 5 is a view of the bottom of the lighting unit of the present invention, with the broken line showing for illustrative purposes only and forming no part of the claimed design;

FIG. 6 is a view of the second side of the lighting unit of the present invention;

FIG. 7 is a view of the front of the lighting unit of the present invention; and,

FIG. 8 is a view of the first side of the lighting unit of the present invention. 

The ornamental design for a lighting unit, as shown and described. 